CN102039236A - Foaming tool with safety control mechanism - Google Patents
Foaming tool with safety control mechanism Download PDFInfo
- Publication number
- CN102039236A CN102039236A CN2009102050235A CN200910205023A CN102039236A CN 102039236 A CN102039236 A CN 102039236A CN 2009102050235 A CN2009102050235 A CN 2009102050235A CN 200910205023 A CN200910205023 A CN 200910205023A CN 102039236 A CN102039236 A CN 102039236A
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- CN
- China
- Prior art keywords
- control mechanism
- spool
- security control
- ball
- locking piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/16—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
- B65D83/20—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
- B65D83/207—Actuators comprising a manually operated valve and being attachable to the aerosol container, e.g. downstream a valve fitted to the container; Actuators associated to container valves with valve seats located outside the aerosol container
Abstract
The invention provides a foaming tool with a safety control mechanism, comprising a shell, a liquid inlet valve, a liquid outlet valve and a hand-pulled switch, wherein the rear end part of the shell is provided with a fixed block; one end of a reset spring is connected with a value plug, and the other end of the reset spring is connected with the fixed block so as to cause the elastic force of the reset spring to be constant; the shell is provided with a safety control mechanism which comprises a regulating part and a locking part; part of the regulating part is in thread connection with the locking part, and the regulating part can rotate, thus the locking part can form a stroke; at the first end part of the stroke, the locking part abuts against the valve plug so as to limit the movement of the valve plug; and at the other end part of the stroke, the locking part is separated from the valve plug to generate a clearance, thus being convenient for the valve plug to move. The foaming tool provided by the invention has the advantages of being convenient and simple to operate, being easy to regulate and lock, having low cost, safety and reliability, and being difficult to wear; and the tensile force of the hand-pulled switch is constant, and the operation is simple, thus the service life of a seal ring is prolonged, and the leakage control capacity is improved.
Description
Technical field
The present invention relates to the construction and decoration field of tool, is a kind of foam tool that the spray foam gap filler is provided.
Background technology
At present, about the door in building and the house, window, body of wall, mix earth, the insulation that air-conditioning is installed, various pipelines are installed, ventilating opening and electric wire outlet etc. need the place of joint filling (caulking joint) or mending-leakage, generally all adopting special material to have anticyclonic foam gap filler is raw material, during use, by foam tool foam gap filler is quantitatively discharged and reach purposes such as joint filling or mending-leakage, the injection of foam gap filler is to reach injection by the pressure that self produces, such as: foam gap filler can adopt polyurethane and butane gas to be mixed into primary raw material, has high viscosity, in case the foam gap filler ingress of air will solidify immediately, so be contained in the tank body high-seal, equally, when this tank body is installed on the foam tool, also quite high to the seal request of foam tool.General foam tool comprises housing, the feed liquor valve, liquid valve, fixed knob and switching device, fixed knob is a fixing spring, play a part again regulating spool flexible distance what, also held concurrently sealing function between locking spool and the liquid valve, running into bait or construction when using after on the feed liquor valve at foam tool tank body being housed finishes when also leaving foam gap filler in the tank body, perhaps when also leaving over foam gap filler in the passage that uses the post-foaming instrument, must rotate fixed knob and withstand spool, make not stretchy spool of switch, make spool can tightly suppress the fluid mouth, prevent unintentionally or child's Drawing switch and occurring leaks or unexpected the injection or the danger of burning or blast, because spring is fixing by fixed knob, the power of spring all acts on the fixed knob, fixed knob has the effect of above-mentioned several respects again, like this, can cause the defective of a lot of aspects, such as: if spring is made less elastic force, though rotation easily, but spring is big inadequately to the active force of spool, be easy to cause the sealing of spool and liquid valve leakage or burning or explosion phenomenon thoroughly not to occur, also make blowing agent in the foam tool can occur at any time solidifying easily and blocking channel causes foam tool to scrap.If spring is made bigger elastic force, spool can closely be sealed mutually with liquid valve, like this, because of acting directly on, fixed knob make the fixed knob rotation become very heavy on the spring, use gruelling or very difficult adjusting, if it is tight slightly that the threaded engagement between fixed knob and housing has slightly, be difficult to especially regulate, be difficult to the locking spool, the user often abandons using fixed knob after using foam tool, the fixed knob of being unwilling in other words to use, cause the user not with fixed knob and spool locking, be easy to make unintentionally or child's Drawing switch and occurring leaks or unexpected the injection or the danger of burning or blast, also make blowing agent in the foam tool occur at any time solidifying easily and blocking channel causes foam tool to scrap.In addition, because spring is fixing by fixed knob, the power of spring all acts on the fixed knob, when fixed knob inwardly rotates how many times that are used for regulating the blowing agent spray volume, fixed knob is the distance at the compression spring naturally, make spring become big to the elastic force of spool, the pulling force that pulls switch also becomes big and causes more and more heavier, the degree of balance when making spool repeatedly flexible back and forth changes, influenced the proper motion of spool, increased the wearing and tearing of the sealing ring that is provided with between spool and the housing and part and occur the phenomenon of leakage easily.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned prior art, provide a kind of easy to operate, light, regulate easily and lock, not easy to wear, safe and reliable, prevent effectively and avoid occurring leaking or unexpected the injection or burning or blast or solidify the foam tool of phenomenon.
It is constant that another object of the present invention provides the pulling force that pulls switch, operation easily, the degree of balance when making spool repeatedly flexible back and forth is difficult for changing, make spool keep proper motion, the sealing ring between spool and the housing and the wearing and tearing of part have been reduced widely, prolong the service life of sealing ring, improved the leakproof ability.
It is low that another object of the present invention provides a kind of cost, and the product quality height is simple in structure, is fit to the foam tool of producing in enormous quantities.
The object of the present invention is achieved like this: comprise housing, the feed liquor valve, liquid valve and pull switch, liquid valve comprises the fluid mouth, spool and back-moving spring, stretch out between the part of housing internal channel and the housing at spool sealing ring is set, it is characterized in that: the rearward end of described housing is provided with fixture, one end of described back-moving spring is connected on the spool, the other end of described back-moving spring is connected on the described fixture, make the elastic force of described back-moving spring constant, on described housing, security control mechanism is set, described security control mechanism comprises regulating part and locking piece, described regulating part has at least part to be connected by screw thread with described locking piece, regulating part can rotate, make locking piece can form a stroke, when the first end of stroke, locking piece withstands on the spool, the restriction valve core movement, when the other end of stroke, locking piece leaves spool and produces the gap, is convenient to valve core movement.
Described locking piece has at least part to be enclosed within on the described spool.
Described locking piece has at least part that the pilot hole or the lead that are provided with in guide way or gathering sill and the described housing are set to match.
Described guide way or gathering sill are arranged on leading section, match with pilot hole that is provided with in the described housing or lead.
The pilot hole that is provided with in the described housing is oblate or square for the guide way that is provided with in oblate or square or triangle and the described locking piece or triangle matches.
Described regulating part is screwed in outside the described locking piece.
Described regulating part has at least part to expose or stretches out described housing to be convenient to rotate.
Shoulder or flange are set on the described spool, and described when the first end of stroke, locking piece withstands on the shoulder or flange of spool.
Shoulder or flange are set on the described spool, and an end of described back-moving spring leans against on described shoulder or the flange.
Described when the other end of stroke, the spacing of the top of locking piece and described shoulder or flange is between 1 millimeter to 15 millimeters.
Described when the other end of stroke, the spacing of the top of locking piece and described shoulder or flange is between 2 millimeters to 10 millimeters.
Described security control mechanism also comprises ball and the spring that acts on the ball, and described ball contacts with described regulating part.
In on described housing and/or the fixture cross-drilled hole is set, described ball and the spring that acts on the ball are arranged in the described cross-drilled hole, and described ball contacts with described regulating part.
Described regulating part has at least part to make annular concave, convex groove or thread groove, and described ball contacts with described annular concave, convex groove or thread groove.
Described security control mechanism also comprises ball and the spring that acts on the ball, and described ball contacts with described housing or fixture.
In the described regulating part cross-drilled hole is set, described ball and the spring that acts on the ball are arranged in the described cross-drilled hole, and described ball contacts with described housing or fixture.
The side of described housing or fixture has at least part to make annular concave, convex groove or thread groove, and described ball contacts with described annular concave, convex groove or thread groove.
Description of drawings
Fig. 1 has the structural representation of a kind of embodiment of the foam tool of security control mechanism for the present invention.
Fig. 2 is the structural representation when safety device mechanism works among Fig. 1.
Fig. 3 is the schematic diagram of A-A among Fig. 1.
Fig. 4 is the structural representation of security control mechanism among Fig. 1.
Among the figure:
1-housing 11-pilot hole 12-cross-drilled hole 2-feed liquor valve 21-liquid inlet port 22-closure member 23-back-moving spring 3-liquid valve 31-fluid mouth 32-spool 321-shoulder 33-back-moving spring 4-pulls the top 722---guide way 73-ball 74-spring 75-cross-drilled hole of the switch 5-sealing ring 51-second fixture 6-fixture 7-security control mechanism 71-regulating part 72-locking piece 721-locking piece
The specific embodiment
Referring to Fig. 1, comprise housing 1, feed liquor valve 2, liquid valve 3 and pull switch 4, liquid valve 3 comprises fluid mouth 31, spool 32 and back-moving spring 33, stretch out between the part of housing 1 internal channel and the housing 1 at spool 32 sealing ring 5 is set, it is characterized in that: the rearward end of described housing 1 is provided with fixture 6, one end of described back-moving spring 33 is connected on the spool 32, the other end of described back-moving spring 33 is connected on the described fixture 6, make the elastic force of described back-moving spring 33 constant, on described housing 1, security control mechanism 7 is set, described security control mechanism 7 comprises regulating part 71 and locking piece 72, described regulating part 71 has at least part and described locking piece 72 to be connected by screw thread, regulating part 71 can rotate, make locking piece 72 can form a stroke, when the first end of stroke, locking piece 72 withstands on the spool 32,32 motions of restriction spool, when the other end of stroke, referring to Fig. 2, locking piece 72 leaves spool 32 and produces the gap, be convenient to spool 32 motions, easy to operate, easily, regulate easily and locking, not easy to wear, safe and reliable, prevent and avoid occurring leakage or unexpected the injection or burning or blast or curing phenomenon effectively, make the pulling force that pulls switch constant, operation easily, the degree of balance when making spool repeatedly flexible back and forth is difficult for changing, and makes spool keep proper motion, has reduced the sealing ring between spool and the housing and the wearing and tearing of part widely, prolonged the service life of sealing ring, improved the leakproof ability, this infrastructure cost is low, the product quality height, simple in structure, be fit to the foam tool of producing in enormous quantities.
Described locking piece 72 has at least part to be enclosed within on the described spool 32, and is rational in infrastructure, saves the space.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, described locking piece 72 has at least part that guide way 721 is set or gathering sill matches with the pilot hole 11 or the lead of setting in the described housing 1, like this, when rotating regulating part 71, locking piece 72 can only laterally move, make locking piece 72 can form a stroke, when the first end of stroke, locking piece 72 withstands on the spool 32, and 32 motions of restriction spool are when the other end of stroke, locking piece 72 leaves spool 32 and produces the gap, be convenient to spool 32 motions, easy to operate, easily, regulate easily and lock, not easy to wear, safe and reliable, prevent leakage phenomenon, avoided and then regulating part 71 rotation phenomenon of locking piece 72 effectively.Described guide way 722 or gathering sill are arranged on leading section, match with the pilot hole 11 or the lead that are provided with in the described housing 1, this structure is more reasonable, further, the pilot hole 11 that is provided with in the described housing 1 for the guide way 721 that is provided with in oblate (referring to Fig. 3) or other shape such as square or triangle and the described locking piece 72 for oblateness (referring to Fig. 4) or other shapes such as square or triangle with match, simple and reasonable for structure, cost is low.
Described regulating part 72 is screwed in outside the described locking piece 71, and is rational in infrastructure, saves the space.。
Described regulating part 72 has at least part to expose or stretches out described housing 1 to be convenient to rotate.
Referring to Fig. 1, shoulder 321 or flange are set on the described spool, described when the first end of stroke, locking piece 72 withstands on the shoulder 321 or flange of spool 32, and simple and reasonable for structure, cost is low.。
On the described spool 32 shoulder 321 or flange are set, an end of described back-moving spring 33 leans against on described shoulder 321 or the flange, and simple and reasonable for structure, cost is low.
Described when the other end of stroke, the top 721 of locking piece 72 and the spacing of described shoulder 321 or flange are between 1 millimeter to 15 millimeters, make the foam gap filler ejection smooth more, foaming effect is good, preferred described when the other end of stroke, the top 721 of locking piece 72 and the spacing of described shoulder 321 or flange are between 2 millimeters to 10 millimeters.
Described security control mechanism 6 also comprises ball 73 and the spring 74 that acts on the ball 73, described ball 73 contacts with described regulating part 71, like this, described ball 73 produces friction with described adjuster 71 because of contacting, locking piece 72 just is not easy to produce rotation, avoid locking piece 72 because of produce from then lockout failure appears or adjustable range is malfunctioning.
Cross-drilled hole 11 is set on described housing and/or the fixture, described ball 73 and the spring 74 that acts on the ball 73 are arranged in the described cross-drilled hole 11, described ball 73 contacts with described regulating part 71, ball 73 can stably rub mutually with regulating part 71, this is rational in infrastructure, simple, easy for installation, safe and reliable.
Described regulating part 71 has at least part to make annular concave, convex groove 711 or thread groove, described ball 73 contacts with described annular concave, convex groove 711 or thread groove, like this, when twist-lock spare 72, the sensation that will occur rubbing or ' clatter clatter ' sound, the user feels when rotated, is convenient to control the distance of rotation or the situation of locking, guarantee to realize anti-leak and the purpose of easily using, safe and reliable.
Also can be that described security control mechanism 7 also comprises ball 73 and the spring 74 that acts on the ball 73, described ball 73 contacts with described housing 1 or fixture 6, like this, described ball 73 produces friction with described adjuster 71 because of contacting, locking piece 72 just is not easy to produce rotation, avoid locking piece 72 because of produce from then lockout failure appears or adjustable range is malfunctioning.
In the described regulating part 71 cross-drilled hole is set, described ball 73 and the spring 74 that acts on the ball 73 are arranged in the described cross-drilled hole, and described ball 73 contacts with described housing 1 or fixture 6, ball 73 can stably rub mutually with regulating part 71, this is rational in infrastructure, simple, and is easy for installation, safe and reliable.
The side of described housing 1 or fixture 6 has at least part to make annular concave, convex groove or thread groove, described ball 73 contacts with described annular concave, convex groove or thread groove, like this, when twist-lock spare 72, the sensation that will occur rubbing or ' clatter clatter ' sound, the user feels when rotated, is convenient to control the distance of rotation or the situation of locking, guarantee to realize anti-leak and the purpose of easily using, safe and reliable.
When needs spray foam gap filler, after on the feed liquor valve 2 of foam tool the tank body that has foam gap filler being housed, because back-moving spring 33 does not produce active force to locking piece 72, easily and like a cork rotate regulating part 71, driving locking piece 72 laterally moves, make between the top 721 of locking piece 72 and the shoulder 321 on the spool 32 and produce the space, the locking of 72 pairs of spools 32 of part unlocks, thereby pulling pulls switch 4 and spool 32 is moved and opens fluid mouth 31, foam gap filler is successfully sprayed, pull switch 4 and no matter back and forth spur how many times, its pulling force is constant, operation easily, also can be according to the needs of construction, easily and like a cork the spin locking spare 72 outside distances that move how much, the metered injection foam gap filler, pull switch 4 and no matter back and forth spur how many times, its pulling force is constant, operation easily, because back-moving spring 33 is fixing by fixture 6, the power of back-moving spring 33 all acts on the fixture 6, and fixture 6 is fixed, so elastic force is constant, when rotation regulating part 71 is used for regulating how many times of blowing agent spray volume, to not influence of fixture 6, the pulling force that pulls switch 4 is constant forever, thus keep more than 32 flexible back and forth degree of balance of spool always, thus reduced the wearing and tearing of the sealing ring 5 between spool 32 and the housing 1 widely, prolong the service life of sealing ring 5, improved the leakproof ability.When have a rest or construction finishes when also leaving foam gap filler in the tank body midway, perhaps when also leaving over foam gap filler in the passage that uses the post-foaming instrument, because back-moving spring 33 does not produce active force to regulating part 71 and locking piece 72, therefore, easily and like a cork rotating regulating part 71 makes locking piece 72 withstand the shoulder 321 of spool 32, make and pull not stretchy spool 32 of switch 4, make spool 32 can tightly suppress fluid mouth 31, prevent unintentionally or child's Drawing switch 4 and occurring leaks or unexpected the injection or the danger of burning or blast, this structural safety is reliable, prevent and avoid occurring leakage or unexpected injection or curing or burning or explosion phenomenon effectively, the having at least part to expose or stretch out described housing 1 or fixture 6 of regulating part 71, be easy to regulate and locking, easy to operate, easily, cost is low, the product quality height, simple in structure, be fit to produce in enormous quantities.
Though below in conjunction with the embodiments the present invention has been made detailed description, those of ordinary skill obviously can be recognized in the art, and previous embodiment only is for the present invention, and non-limiting the present invention.In design scope of the present invention, can also make multiple variation or distortion to previous embodiment, these variations and distortion all should belong to the protection domain of this patent.
Claims (17)
1. foam tool with security control mechanism, comprise housing 1, feed liquor valve 2, liquid valve 3 and pull switch 4, liquid valve 3 comprises fluid mouth 31, spool 32 and back-moving spring 33, stretch out between the part of housing 1 internal channel and the housing 1 at spool 32 sealing ring 5 is set, it is characterized in that: the rearward end of described housing 1 is provided with fixture 6, one end of described back-moving spring 33 is connected on the spool 32, the other end of described back-moving spring 33 is connected on the described fixture 6, make the elastic force of described back-moving spring 33 constant, on described housing 1, security control mechanism 7 is set, described security control mechanism 7 comprises regulating part 71 and locking piece 72, described regulating part 71 has at least part and described locking piece 72 to be connected by screw thread, and regulating part 71 can rotate, and makes locking piece 72 can form a stroke, when the first end of stroke, locking piece 72 withstands on the spool 32, and 32 motions of restriction spool are when the other end of stroke, locking piece 72 leaves spool 32 and produces the gap, is convenient to spool 32 motions.
2. according to the described foam tool of claim 1, it is characterized in that described locking piece 72 has at least part to be enclosed within on the described spool 32 with security control mechanism.
3. according to the described foam tool of claim 1, it is characterized in that described locking piece has at least part that the pilot hole or the lead that are provided with in guide way or gathering sill and the described housing are set and matches with security control mechanism.
4. according to the described foam tool of claim 3, it is characterized in that described guide way or gathering sill are arranged on leading section, match with pilot hole that is provided with in the described housing or lead with security control mechanism.
5. according to the described foam tool of claim 1, it is characterized in that the pilot hole that is provided with in the described housing is oblate or square for the guide way that is provided with in oblate or square or triangle and the described locking piece or triangle matches with security control mechanism.
6. foam tool according to claim 1 is characterized in that described regulating part is screwed in outside the described locking piece.
7. foam tool according to claim 1 is characterized in that described regulating part has at least part to expose or stretches out described housing and is convenient to rotate.
8. foam tool according to claim 1 is characterized in that being provided with on the described spool shoulder or flange, and described when the first end of stroke, locking piece withstands on the shoulder or flange of spool.
9. foam tool according to claim 1 is characterized in that being provided with on the described spool shoulder or flange, and an end of described back-moving spring 33 leans against on described shoulder or the flange.
10. the described according to Claim 8 foam tool with security control mechanism is characterized in that describedly when the other end of stroke, and the leading section 721 of locking piece 72 and the spacing of described shoulder or flange are between 1 millimeter to 15 millimeters.
11. according to the described foam tool with security control mechanism of claim 10, it is characterized in that describedly when the other end of stroke, the leading section 721 of locking piece 72 and the spacing of described shoulder or flange are between 2 millimeters to 10 millimeters.
12. according to one of any described foam tool with security control mechanism of claim 1 to 11, it is characterized in that described security control mechanism 6 also comprises ball 73 and acts on spring 74 on the ball 73, described ball 73 contacts with described regulating part 71.
13. according to the described foam tool of claim 12 with security control mechanism, in it is characterized in that on described housing and/or the fixture cross-drilled hole 11 is set, described ball 73 and the spring 74 that acts on the ball 73 are arranged in the described cross-drilled hole 11, and described ball 73 contacts with described regulating part 71.
14. according to the described foam tool with security control mechanism of claim 13, it is characterized in that described regulating part 71 has at least part to make annular concave, convex groove 711 or thread groove, described ball 73 contacts with described annular concave, convex groove 711 or thread groove.
15. according to one of any described foam tool of claim 1 to 11 with security control mechanism, it is characterized in that described security control mechanism 7 also comprises ball 73 and the spring 74 that acts on the ball 73, described ball 73 contacts with described housing 1 or fixture 6.
16. according to the described foam tool of claim 14 with security control mechanism, it is characterized in that in the described regulating part 71 cross-drilled hole being set, described ball 73 and the spring 74 that acts on the ball 73 are arranged in the described cross-drilled hole, and described ball 73 contacts with described housing 1 or fixture 6.
17. according to the described foam tool of claim 14 with security control mechanism, the side that it is characterized in that described housing 1 or fixture 6 has at least part to make annular concave, convex groove or thread groove, and described ball 73 contacts with described annular concave, convex groove or thread groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102050235A CN102039236A (en) | 2009-10-10 | 2009-10-10 | Foaming tool with safety control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102050235A CN102039236A (en) | 2009-10-10 | 2009-10-10 | Foaming tool with safety control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102039236A true CN102039236A (en) | 2011-05-04 |
Family
ID=43905966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102050235A Pending CN102039236A (en) | 2009-10-10 | 2009-10-10 | Foaming tool with safety control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102039236A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480524A (en) * | 2013-09-24 | 2014-01-01 | 宁波李氏实业有限公司 | Convenient spray gun |
| CN106423764A (en) * | 2015-07-08 | 2017-02-22 | 王钧 | Foam caulking gun with safety device |
| CN112494867A (en) * | 2020-11-16 | 2021-03-16 | 温州画筠信息技术有限公司 | Fireproof automatic sprayer with dust removal function |
-
2009
- 2009-10-10 CN CN2009102050235A patent/CN102039236A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480524A (en) * | 2013-09-24 | 2014-01-01 | 宁波李氏实业有限公司 | Convenient spray gun |
| CN103480524B (en) * | 2013-09-24 | 2015-12-02 | 宁波李氏实业有限公司 | A kind of convenient spray gun |
| CN106423764A (en) * | 2015-07-08 | 2017-02-22 | 王钧 | Foam caulking gun with safety device |
| CN112494867A (en) * | 2020-11-16 | 2021-03-16 | 温州画筠信息技术有限公司 | Fireproof automatic sprayer with dust removal function |
| CN112494867B (en) * | 2020-11-16 | 2022-01-21 | 中环盛达环保科技集团(庆云)有限公司 | Fireproof automatic sprayer with dust removal function |
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Application publication date: 20110504 |